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3000013 = 7733881
BaseRepresentation
bin1011011100011011001101
312122102020121
423130123031
51232000023
6144144541
734333252
oct13343315
95572217
103000013
111769a55
121008151
13810673
14581429
153e3d5d
hex2dc6cd

3000013 has 4 divisors (see below), whose sum is σ = 3004668. Its totient is φ = 2995360.

The previous prime is 2999999. The next prime is 3000017. The reversal of 3000013 is 3100003.

Adding to 3000013 its reverse (3100003), we get a palindrome (6100016).

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100003 = 3738311.

It can be written as a sum of positive squares in 2 ways, for example, as 917764 + 2082249 = 958^2 + 1443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3000013 is a prime.

It is a Duffinian number.

3000013 is a modest number, since divided by 13 gives 3 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (751167).

Almost surely, 23000013 is an apocalyptic number.

It is an amenable number.

3000013 is a deficient number, since it is larger than the sum of its proper divisors (4655).

3000013 is an equidigital number, since it uses as much as digits as its factorization.

3000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654.

The product of its (nonzero) digits is 9, while the sum is 7.

The square root of 3000013 is about 1732.0545603416. The cubic root of 3000013 is about 144.2251653554.

The spelling of 3000013 in words is "three million, thirteen", and thus it is an aban number and an uban number.

Divisors: 1 773 3881 3000013